Adjustable lamp



FIG. 1 is a top, front, right side perspective view of an adjustable lamp showing my new design;

FIG. 2 is a front elevational view thereof, the rear being a mirror image;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top, front, right side perspective view thereof on a reduced scale, the lamp being in an alternate position. 

The ornamental design for adjustable lamp, as shown and described. 